ECS 3.6.2 Data Access Guide

Configure ECS client properties

You can use Ambari to set the following configuration properties that are required by the ECS client.

For more information on the core-site.xml parameters, see Hadoop core-site xml properties for ECS HDFS.

Table 1. Hadoop configuration to enable ECS accessThe table lists the Hadoop configuration details to enalble ECS access
Hadoop location	Property	Value
core-site	fs.viprfs.impl	com.emc.hadoop.fs.vipr.ViPRFileSystem
	fs.AbstractFileSystem.viprfs.impl	com.emc.hadoop.fs.vipr.ViPRAbstractFileSystem
	fs.viprfs.auth.identity_translation	NONE
	fs.viprfs.auth.anonymous_translation	LOCAL_USER
	fs.vipr.installations	Can be any name, such as `federation1`and will be referred to as $FEDERATION. If you have multiple independent ECS federations, enter multiple values separated by commas.
	fs.vipr.installation.$FEDERATION.hosts	Comma-separated list of FQDN or IP address of each ECS host in the local site
	fs.vipr.installation.$FEDERATION.hosts.resolution	dynamic
	fs.vipr.installation.$FEDERATION.resolution.dynamic.time_to_live_ms	900000
hdfs-site	fs.permissions.umask-mode	022
yarn-site	yarn.application.classpath	Append the following: /usr/lib/hadoop/lib/*
mapred-site	mapreduce.application.classpath	Append the following: /usr/lib/hadoop/lib/*
tez-site	tez.cluster.additional.classpath.prefix	Append the following: /usr/lib/hadoop/lib/*
HDFS	hadoop-env template	Append the following: export HADOOP_CLASSPATH=${HADOOP_CLASSPATH}:/usr/lib/hadoop/lib/*
Spark	spark-env template	Append the following: export SPARK_DIST_CLASSPATH="${SPARK_DIST_CLASSPATH}:/usr/lib/hadoop/lib/*:/usr/hdp/current/hadoop-client/client/guava.jar"